A
Battlefield 2 Update announces the release of the Linux dedicated server for
the Battlefield 2 demo. The 40 MB download is available on
EA's FTP server (direct link), and mirrored on
3D Downloads, 3D
Gamers, and
FileFront. There is also an update confirming that they are intentionally
removing servers from their server list that have turned off the game's time
limit:

EA and DICE both fully support server-side modding in the sense
that we have intentionally exposed a good deal of Python functionality to the
end-user, primarily to encourage modders to tweak game types and scoring (on
UNRANKED servers) once the full game is available. That said, we have come
to discover that two items that were not a part of the demo feature-set were
hacked in the Battlefield 2 demo. We consider both of these changes in violation
of the Tools EULA that each server operator accepted in installing the server
software.

The demo's feature set included a 12-minute time limit on rounds and excluded
access to the weapon unlocks. Because some server operators have hacked the time
limit out of their servers or hacked access to the unlocks, we have been forced
to reinforce our intended feature set by delisting the offending servers. All
violations of the EULA as described above will result in a 1-week
ban/delisting.